EP3808265B1 - Patientenlagerungsvorrichtung wie etwa ein patientenbett, -tisch oder -stuhl zur verwendung mit magnetresonanzabbildungsvorrichtungen - Google Patents

Patientenlagerungsvorrichtung wie etwa ein patientenbett, -tisch oder -stuhl zur verwendung mit magnetresonanzabbildungsvorrichtungen Download PDF

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Publication number
EP3808265B1
EP3808265B1 EP19203595.4A EP19203595A EP3808265B1 EP 3808265 B1 EP3808265 B1 EP 3808265B1 EP 19203595 A EP19203595 A EP 19203595A EP 3808265 B1 EP3808265 B1 EP 3808265B1
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EP
European Patent Office
Prior art keywords
patient support
coil
cushions
support device
cushion
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EP19203595.4A
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English (en)
French (fr)
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EP3808265A1 (de
Inventor
Roberto Garolla
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Esaote SpA
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Esaote SpA
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Priority to EP19203595.4A priority Critical patent/EP3808265B1/de
Priority to US17/071,119 priority patent/US11717224B2/en
Publication of EP3808265A1 publication Critical patent/EP3808265A1/de
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/70—Means for positioning the patient in relation to the detecting, measuring or recording means
    • A61B5/704—Tables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/34007—Manufacture of RF coils, e.g. using printed circuit board technology; additional hardware for providing mechanical support to the RF coil assembly or to part thereof, e.g. a support for moving the coil assembly relative to the remainder of the MR system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/225—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for for extracorporeal shock wave lithotripsy [ESWL], e.g. by using ultrasonic waves
    • A61B17/2255—Means for positioning patient, shock wave apparatus or locating means, e.g. mechanical aspects, patient beds, support arms, aiming means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0033—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/04—Positioning of patients; Tiltable beds or the like
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/04—Positioning of patients; Tiltable beds or the like
    • A61B6/0407—Supports, e.g. tables or beds, for the body or parts of the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/04—Positioning of patients; Tiltable beds or the like
    • A61B6/0407—Supports, e.g. tables or beds, for the body or parts of the body
    • A61B6/0421—Supports, e.g. tables or beds, for the body or parts of the body with immobilising means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces

Definitions

  • the invention relates to a patient support device, such as a patient bed, table or chair, for use with Magnetic Resonance imaging apparatuses, wherein said device comprises a patient supporting surface having such a size as to accommodate at least a part, particularly the whole of the patient body.
  • Magnetic Resonance imaging apparatuses are known in the art.
  • One of these is a total body scanner apparatus, whose magnet structure can accommodate the whole patient body, or a considerable part thereof, within an imaging volume defined by the magnet structure.
  • the patient is carried into the imaging volume by a positioning device, such as a patient bed or table mounted on a cart.
  • a positioning device such as a patient bed or table mounted on a cart.
  • Such type of apparatuses have a number of drawbacks: they have a large size, a heavy weight and a high cost and may easily cause problems during installation, i.e. they have to be installed in facilities of such a size and structural strength as to fit the size and the weight of the apparatus, which involves a further cost increase.
  • Actual coils for receiving coils for receiving the RF MRI echoes are further mounted above the patient supporting surface and are shaped in such a way as to at least partially surround the body to be imaged or the part of the body to be imaged.
  • This kind of coils has the drawback that it can be used comfortably only for some anatomical district of the body to be imaged.
  • such kind of known receiving coils would need very big dimensions and request correspondingly bigger structures of the imaging apparatus which must allow to place inside particularly a cavity of a magnetic resonance apparatus not only the body to be imaged or part of it but also the receiving coil.
  • a patient supporting device Normally inside the cavity of the MRI apparatus also a patient supporting device must fit together with the body to be imaged or the part of the body to be imaged and the correspondingly shaped and dimensioned receiving coil.
  • Figure 1 shows an MRI apparatus according to the state of the art and comprising a patient support table slidably secured to a pole of a magnet and which support table is provided distributed over its surface with a certain number of coils securing seats each seat being positioned approximatively at the position of an anatomic district to be imaged when the patient is positioned on the supporting table.
  • the Magnetic Resonance Imaging apparatus comprises a support element in the form of a vertical wall 1.
  • a magnet structure 2 is overhanging secured to said support element.
  • the magnet structure 2 comprises two opposed pole pieces 102, 202, which are oriented perpendicular to the vertical support wall 1. These pole pieces 102, 202 are at a certain predetermined distance from each other and are connected by a column or wall 302 extending parallel to the vertical support wall 1.
  • a patient support surface 7, essentially formed by a patient table is mounted on the lower pole piece 102 of the magnet structure 2 with its longitudinal axis perpendicular to the axis of the shaft and parallel to the wall 302 of the magnet structure 2.
  • the support surface 7 is supported in such a manner as to be able to slide parallel to its own longitudinal axis, thanks to a combination of guides and slides, motor-driven means being provided to achieve proper positioning of the support plane 7 relative to the magnet structure 2.
  • a plurality of receptacles 12 each for removably locking the base 113 of a receiver coil 3 are provided on the bottom face of the lying patient support surface 7.
  • receptacles 12 are provided in symmetric pairs, with respect to the longitudinal center axis of the support surface 7, and particularly level with the two shoulders, the two elbows, the two wrists, the two knees and the two ankles of the patient, with reference to the lying position of the patient at the center of the support plane 7.
  • the said receptacles are destined to cooperate with a securing socket or foot of coils.
  • Thease foots or sockets are shaped and configured in such a way as to engage in a releasable manner a corresponding receptacle.
  • the arrangement of coils resulted from an ergonomic analysis associated to the evaluation of anthropometric data, but any other arrangement that is deemed to be useful may be provided.
  • the receptacles of this embodiment have a predetermined position on the patient support table or surface and must be provided and planned already at the very beginning of the configuration and design process of the patient support table. After the construction of the said table the receptacles cannot be anymore modified in relation to their configuration. Their number and their position on the patient support surface or table.
  • US 2012/0122265 A1 describes another system of receive coils and pads for use with MRI.
  • the coils may also have different shapes, depending on the anatomic region for which they are designed.
  • a mattress is provided on the top face of the support surface 7, to increase patient comfort, and the base of each coil has such an axial extension as to allow introduction thereof in its locking receptacle by passing through a through hole formed in the mattress.
  • the holes that are not used during a particular examination may be closed by bearing-like closing members, which may be made from the same material as the mattress or from another material.
  • the base of each coil and each receptacle have complementary means for removably locking the base of the coil, which may be, for instance, a press-fit terminal provided at the lower end of the base and a complementary press-fit recess provided at the bottom of the receptacle.
  • An annular widened portion of the base of each coil is further provided which, when the base is fitted in its receptacle, abuts against the corresponding annular periphery of the receptacle, thereby allowing proper automatic height positioning of each coil relative to the support surface, and allowing the coil to project above the mattress to the required extent.
  • the present invention has the purpose of obviating the above drawbacks and providing, by simple and inexpensive means a patient support device as described hereinbefore, which is capable of being combined with a relatively small, light and inexpensive apparatus.
  • Patients should be easily placed on the support device, and the positioning of the relevant anatomic region should be fast and safe, with no movement possibly having to be performed by patients, especially when several different anatomic regions have to be examined.
  • Another object of the present invention relates to providing a patient support device which is functional and low cost allowing at the same time to be very flexible in relation to changing the position of the receptacle at which a receiving coil can be secured and also the configuration of a receptacle for bringing the said receptacle in conformity with different configurations of the securing socket or foot of a coil.
  • the invention achieves the above objects by providing a patient support device such as a patient bed, table or chair, for use with Magnetic Resonance Imaging apparatuses, wherein said device comprises a patient support surface having such a size as to accommodate at least a part of the patient body, particularly the whole of the patient body, the said device comprising at least one receptacle (307) for housing and/or removably coupling a coil (13') adapted to receive signals from anatomic regions upon excitation thereof by the Magnetic Resonance Imaging apparatus, which at least one receptacle (307) is arranged in an area of the patient supporting surface corresponding to the position of the anatomic region to be imaged,
  • the said patient support surface being covered at least partially by one or more cushions covering in combination the entire patient supporting surface or at least a part of it.
  • At least one of the said receptacles for coupling to a receiving coil being provided on at least each of one or more than one of the said cushions,
  • the coil once coupled to a corresponding receptacle is connected to a control and processing unit of the MRI apparatus by means of a cable which is external to the said patient support device.
  • At least part of the cushions have an extension in the direction perpendicular to the longitudinal axis of the said support device, which extension corresponding essentially to the width of the said patient support surface.
  • the said cushions have an extension in the longitudinal direction of the said patient support device and the said cushions being provided in such a number that the sum of the extensions of the said number of cushions provided is essentially equal to the longitudinal extension of the said patient support surface.
  • the extension of the said cushions in the direction parallel to the longitudinal axis of the patient support surface is selected such that the corresponding receptacle for coupling a receiving coil is essentially in a position corresponding to an anatomical district which is diagnostically interesting for being examined by MRI imaging when a patient is positioned on the patient support device.
  • the extension of the said cushions in the direction parallel to the longitudinal axis of the patient support surface is calculated as a function of the average dimensions of the anatomical structure of a normal adult person and/or of a child.
  • cushions are provided which do not show any receptacle for securing a coil, while in combination therewith dedicated coil securing plates which are coils specifically designed cushion or element substituting at least one cushion are provided, these coil securing plates having at least one receptacle for securing at least one coil, the said coil securing plates having the dimensions of a corresponding cushion.
  • a further embodiment provides for a coil having a coil foot designed for engaging a corresponding receptacle, the said coil foot comprising a lower extension destined to engage the receptacle and projecting out of an enlarged base which is destined to adhere to the surface of the coil securing plate when the lower projection is engaged in the receptacle.
  • the coil supporting cushions have identical dimensions as normal cushions.
  • Eccentric coil seat coupling with unitary coil socket for several kinds of coils in combination with the cushions extending from side to side of the table allows easy positioning for right and left districts (leg, knee, arm, shoulder) by simply rotating the cushion of 180°.
  • the special socket construction in combination with controlled deformation behavior of the cushion ensure positioning stability of the coil; enlarged contact surface with the cushion in combination with support also on the hard part of the table.
  • the said support device is provided in combination with at least one NMR signal receiving coil, the said coil being provided wit a socket configured to engage a corresponding receptacle and
  • the said patient support device comprising a patient support surface and a set of cushions dimensioned such that the set of cushions covers, when positioned on the said patient support surface, quite the entire extension of the said surface;
  • the said set of cushions further comprising at least one first cushion provided with a coil securing receptacle configured to releasable engage the securing socket of a receiving coil;
  • At least a further cushion having a coil securing receptacle which is modified relatively to the said first cushion in relation to the position of the said receptacle along the said cushion surface and/or in relation to the design or configuration of the said receptacle for being in conformity with a further different socket;
  • At least a further cushion not showing any receptacle but having different dimensions, particularly a different extension in at least one direction particularly in a direction parallel to the longitudinal axis of the patient support device.
  • two or more set of cushions are provided each set comprising at least one cushion with a coil securing receptacle, at least one cushion without any receptacle, the said sets of cushions having dimensions in the direction of the longitudinal axis of the patient support device which are determined as a function of the height of samples of patient body having different heights.
  • the samples of patient body are selected among the ones in the following list: baby, adolescent, adult, small, medium and tall adult.
  • the patient support device can be very easily adapted or upgraded to the configuration and design of new or different kinds of receiving coils to be positioned and secured on it.
  • This by simply providing a differently configured cushion having identical or quite identical overall dimensions of the existing cushions and bearing a differently designed and/or configured receptacle and/or a receptacle positioned differently on the extension of the corresponding cushion.
  • the patient support device is described in a specific example in combination of an open C shaped magnet and in this case the table is slidably secured to the magnet structure.
  • FIGS 2 to 8 show a patient support device configured as a patient support table in which the structure of the table itself is not provided with coil securing receptacles directly on the patient support table.
  • a patient support table comprises a patient support plate 107 which is of a rigid material.
  • the patient support plate has a shape with a cross section, i.e. a section plane perpendicular to the longitudinal axis of the table and perpendicular to the surface of the said support plate, which is shaped like a channel.
  • a central patient support plate 207 is provided along each longitudinal edge with lateral longitudinal walls 307 extending for the entire length of the plate 207.
  • the lateral walls 307 forms steps having a substantially vertical extension and these vertical extensions forms abutments for the head ends 117 of the cushions 17 and of cushions having the function of coils securing plates 17'.
  • the cushions 17, 17' do not abut directly against the lateral walls 307, but spacers 8 are provided between each head end of the cushions 17, 17' and the said lateral walls 307.
  • the spacers do not extend for the entire length of the head ends of the cushions 17, 17', but the said spacers are provided only at each corner regions of the said head ends.
  • the said lateral walls protrude over the surface of the central plate 207 in such a measure that they still protrude over the upper surface of the cushions.
  • the said cushions have an extension in the direction transverse to the longitudinal axis of the patient support table such that each cushion reaches from one vertical wall to the opposite, fitting precisely between the two abutments formed by the said vertical walls.
  • At least one of the cushions 17' has the function of a coil 3 securing plate and this cushion 17' is provided with a receptacle 12 in which an engagement element 103 of the coil socket 13 is destined to be releasably secured.
  • One way of securing the said socket to the receptacle is press fitting.
  • Another solution may provide for releasable locking means such as the one disclosed in document EP1732438 .
  • the socket 13 of the coils 3 has an enlarged base 23 which base has a contact abutting against the surface of the cushion 17' surrounding the receptacle 12.
  • This enlarged base operates as a stabilizer of the coil socket. Indeed, the large contact surface between socket and cushion distributes the forces acting on the coil 3 on a large surface reducing the local pressure and allowing the coil to have a more stable position.
  • the socket 13 and the enlarged base have a pyramidal form with a square base.
  • the square base is centered coaxially with a lower engagement element 103.
  • the enlarged base is housed within a recessed zone of the cushion 17', the said recessed zone having a shape and dimension corresponding to the one of the enlarged base and furthermore is coaxial to the axis of the receptacle 12.
  • the said recessed zone 217 also provides for strengthening the coupling between socket 13 and cushion 17' thus increasing the stability of the coil position at the cushion 17'.
  • the receptacle for securing the coil may be eccentric with respect of the cushion shape, in an alternative embodiment, as shown in figures 6, 7 and 8 the said receptacle 12 is centered on the said cushion 17'.
  • a set of cushions may comprise at least one cushion 17' according to figures 2 to 4 and at least one cushion 17' according to figures 6 to 8 .
  • FIGS. 2 to 8 show different kind of coils 3.
  • Figures 2 to 5 show a closed cylindric coil.
  • Figure 7 show another kind of closed annular coil, while figure 8 shows an open coil.
  • the signals received by the receiving coil 3 is transmitted to the processing unit which generates the image data from the received signals by a cable 303 of which only the initial part at the coil 3 is shown.
  • a mean body size is selected and the position of the anatomic districts to be imaged is identified.
  • the sizes of the cushions in direction of the longitudinal axis of the support device is calculates as a function of the mutual distance of the said anatomic districts one form the other.
  • At least one cushion may not have an extension in the longitudinal direction of the patient support identical to all the other cushions, so that there might be the possibility of positioning a cushion 17' without the need to observe the step defined by the dimensions of the cushions in the longitudinal direction.
  • each body size is carried out by means of considering the age of the person subjected to imaging.
  • each of the said patient support devices may be equipped with at least three different set of cushions 17, 17'.
  • the specific design of the cushions allows to optimize the number of differently shaped cushions for generating different sets of cushions for the same patient support device according to the real body size of a patient.
  • the two parts may be cut along a line which is a central line in order to have two half cushions or along a cut which is eccentric.

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Claims (15)

  1. Patiententragevorrichtung, wie z.B. ein Patientenbett, - tisch oder -stuhl, zur Verwendung mit Magnetresonanz-Bildgebungsgeräten, wobei die Vorrichtung eine Patiententragefläche (7) mit einer derartigen Größe umfasst, um zumindest einen Teil des Patientenkörpers aufzunehmen, wobei die Vorrichtung mindestens eine Aufnahme (12) zur Unterbringung und/oder lösbaren Kopplung einer Spule (3) umfasst, welche zum Empfangen von Signalen von anatomischen Bereichen bei deren Anregung durch das Magnetresonanz-Bildgebungsgerät geeignet ist, wobei die mindestens eine Aufnahme (12) in einem Bereich der Patiententragefläche angeordnet ist, der der Position des bildgebend darzustellenden anatomischen Bereichs entspricht,
    wobei die Patiententragefläche zumindest teilweise von einem oder mehreren Kissen (17) bedeckt ist, die zusammen die gesamte Patiententragefläche oder zumindest einen Teil davon abdecken, wobei
    mindestens eine der Aufnahmen zur Verbindung mit einer Empfangsspule an mindestens jedem der Kissen oder an mehr als einem der Kissen vorgesehen ist,
    wobei die Spule, nachdem sie an eine entsprechende Aufnahme gekoppelt wird, mittels eines Kabels, das sich außerhalb der Patiententragevorrichtung befindet, mit einer Steuer- und Verarbeitungseinheit des MRT-Geräts verbunden ist und wobei
    die Tragevorrichtung in Kombination mit mindestens einer NMR-Signalempfangsspule versehen ist, wobei die Spule mit einem Sockel (13) versehen ist, der so konfiguriert ist, dass er in eine entsprechende Aufnahme eingreift,
    die Patiententragevorrichtung eine Patiententragefläche und ein Set von Kissen umfasst, das so dimensioniert ist, dass das Set von Kissen, wenn es auf der Patiententragefläche positioniert ist, nahezu die gesamte Erstreckung der besagten Fläche abdeckt;
    wobei das Set von Kissen mindestens ein erstes Kissen umfasst, das mit einer Spulensicherungsaufnahme versehen ist, die zum lösbaren Eingriff mit dem Sicherungssockel einer Empfangsspule eingerichtet ist;
    mindestens ein weiteres Kissen mit einer Spulensicherungsaufnahme, die relativ zum ersten Kissen in Bezug auf die Position der Aufnahme entlang der Kissenoberfläche und/oder in Bezug auf das Design oder die Konfiguration der Aufnahme modifiziert ist, um mit einem weiteren unterschiedlichen Sockel konform zu sein;
    zumindest ein weiteres Kissen, das keine Aufnahme aufweist, aber andere Abmessungen, insbesondere eine andere Erstreckung in zumindest einer Richtung, insbesondere in einer Richtung parallel zur Längsachse der Patiententragevorrichtung aufweist;
    und in dem das mindestens weitere Kissen mit einer relativ zum ersten Kissen in Bezug auf die Position der Aufnahme modifizierten Spulensicherungsaufnahme aus einem Set von Kissen gemäß der folgenden Liste wählbar ist:
    ein Kissen mit einem exzentrischen Spulensitz, der sich mit einem einheitlichen Spulensockel für verschiedene Arten von Spulen verbindet, in Kombination mit den Kissen, die sich von einer Seite zur anderen des Tisches erstrecken und die Positionierung der Spule für den rechten und linken Bereich (Bein, Knie, Arm, Schulter) durch einfaches Drehen des Kissens um 180° ermöglichen;
    ein Kissen für alle Spulen mit zentraler Position (Kopf, Wirbelsäule, Halswirbelsäule, Unterkiefer);
    mindestens ein Kissen, das aus zwei getrennten Hälften besteht, wobei die beiden Teile optional entlang einer Linie, die eine zentrale Linie ist, geschnitten werden, um zwei halbe Kissen zu erhalten, oder entlang eines Schnitts, der exzentrisch ist;
    welche Kissen des Sets mit den anderen Kissen austauschbar sind.
  2. Patiententragevorrichtung nach Anspruch 1, bei der zumindest ein Teil der Kissen eine Erstreckung in Richtung senkrecht zur Längsachse der Tragevorrichtung aufweist, welche Erstreckung im Wesentlichen der Breite der Patiententragefläche entspricht.
  3. Patiententragevorrichtung nach Anspruch 1, bei der die Kissen eine Erstreckung in der Längsrichtung der Patiententragevorrichtung aufweisen und die Kissen in einer solchen Anzahl vorgesehen sind, dass die Summe der Erstreckungen der Anzahl der vorgesehenen Kissen im Wesentlichen gleich der Längserstreckung der Patiententragefläche ist.
  4. Patiententragevorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, bei der die Erstreckung der Kissen in Richtung parallel zur Längsachse der Patiententragefläche so gewählt ist, dass sich die entsprechende Aufnahme zum Koppeln einer Empfangsspule im Wesentlichen in einer Position befindet, die einem anatomischen Bereich entspricht, der für eine Untersuchung durch MRT-Bildgebung diagnostisch von Interesse ist, wenn ein Patient auf der Patiententragevorrichtung positioniert ist.
  5. Patiententragevorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, bei der die Erstreckung der Kissen in Richtung parallel zur Längsachse der Patiententragefläche in Abhängigkeit von den durchschnittlichen Abmessungen der anatomischen Struktur einer normalen erwachsenen Person und/oder eines Kindes berechnet wird.
  6. Patiententragevorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, bei der die mindestens eine Aufnahme zur Unterbringung und/oder lösbaren Kopplung einer Spule in einer dafür vorgesehenen Spulensicherungsplatte vorgesehen ist, die ein speziell für die Spule geformtes Kissen oder Element ist, das mindestens ein Kissen ersetzt.
  7. Patiententragevorrichtung, bei der die Erstreckung der Kissen in Richtung parallel zur Längsachse der Patiententragefläche für jedes Kissen oder jede Spulensicherungsplatte gleich ist.
  8. Patiententragevorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, wobei die Tragevorrichtung einen Patiententragetisch umfasst, der auf einem der Gantry eines MRT-Gerätes zugeordneten Sockel entlang mindestens einer Richtung oder zusätzlich entlang mindestens einer weiteren unterschiedlichen Richtung verschiebbar gelagert ist.
  9. Patiententragevorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, wobei die Tragevorrichtung einen Patiententisch umfasst, der entlang mindestens einer seiner Umfangsränder eine Eingrenzungswand aufweist, gegen die der entsprechende Umfangsrand des Kissens oder der Spulensicherungsplatte anliegt.
  10. Patiententragevorrichtung nach Anspruch 9, bei der die Eingrenzungswand entlang mindestens der beiden Längskanten des Tisches vorgesehen ist, wobei die Kissen und die Spulensicherungsplatte eine Erstreckung in Richtung senkrecht zu den Längskanten aufweisen, die im Wesentlichen dem Abstand der einander zugewandten Seiten der beiden Eingrenzungswände entspricht, wobei jedes Kopfende der Kissen an der entsprechenden Eingrenzungswand anliegt.
  11. Patiententragevorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, bei der die Aufnahme zur Aufnahme/Kopplung der Empfängerspule Mittel zur lösbaren mechanischen Verbindung der Empfängerspule aufweist.
  12. Patiententragevorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, bei der die Spule eine in die Aufnahme eingreifbare untere Verlängerung aufweist, wobei die Verlängerung aus der erweiterten Unterfläche eines Fußes der Spule herausragt, die dazu bestimmt ist, an der Oberfläche des Kissens oder der die Aufnahme umgebenden Spulensicherungsplatte anzuliegen.
  13. Patiententragevorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, bei der jede Spule mit einem Sicherungsfuß versehen ist, der durch Presspassung in eine entsprechende Aufnahme eines Kissens oder einer Spulensicherungsplatte eingreift.
  14. Patiententragevorrichtung nach einem oder mehreren der vorhergehenden Ansprüche, bei der zwei oder mehr Sets von Kissen vorgesehen sind, wobei jedes Set mindestens ein Kissen mit einer Spulensicherungsaufnahme und mindestens ein Kissen ohne irgendeine Aufnahme umfasst, wobei die besagten Kissensets Abmessungen in Richtung der Längsachse der Patiententragevorrichtung aufweisen, die in Abhängigkeit der Höhe von Patientenkörpermustern mit unterschiedlichen Höhen bestimmt werden.
  15. Patiententragevorrichtung nach Anspruch 14, bei der die Patientenkörpermuster aus der folgenden Liste ausgewählt sind: Kleinkind, Jugendlicher, Erwachsener, klein, mittelgroßer und großer Erwachsener.
EP19203595.4A 2019-10-16 2019-10-16 Patientenlagerungsvorrichtung wie etwa ein patientenbett, -tisch oder -stuhl zur verwendung mit magnetresonanzabbildungsvorrichtungen Active EP3808265B1 (de)

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US17/071,119 US11717224B2 (en) 2019-10-16 2020-10-15 Patient support device, such as a patient bed, table or chair, for use with magnetic resonance imaging apparatuses

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